Solar Neutrinos Measured at Record-Low Energies
The XENON Collaboration has successfully measured low-energy solar neutrinos at a record-low threshold of 17 keV using the XENONnT detector in Italy. This achievement provides new insights into the proton-proton fusion reactions that power the Sun.
Why it matters
Advancements in neutrino detection help scientists better understand solar physics and dark matter, pushing the boundaries of experimental particle physics.
Every second, tens of billions of neutrinos produced by nuclear fusion in the Sun pass through every square centimeter of the Earth - and through our bodies - almost without interacting with anything. Although they are one of the most abundant particles emitted by the Sun, their extremely weak interactions make the detection of these elusive particles one of the greatest experimental challenges in particle physics.
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